[Amps] 3-400Z ZSAC

[Robert Bonner]

Gary,

The tube was built to run zero bias at about 2500V, you'll see about 170 ma
at that amount.  If you crank up the plate voltage to 3000 without adding
5-8.5V of cathode bias you will see 250ma of plate current.  250 mils will
turn the plates mighty orange really fast.

BOB DD

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of Gary Schafer
Sent: Thursday, March 15, 2007 8:26 PM
To: 'amps'
Subject: [Amps] 3-400Z ZSAC

Can anyone tell me what the ZSAC should be on a pair of 3-400Z tubes at 3000
volts?

 

Thanks

Gary  K4FMX

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